291240720

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{409}}^1$

素因数の和:494

約数の個数: 240

約数和(自身を含む): 1046897280

約数和(自身を除く): 755656560

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 23, 24, 30, 36, 40, 43, 45, 46, 48, 60, 69, 72, 80, 86, 90, 92, 115, 120, 129, 138, 144, 172, 180, 184, 207, 215, 230, 240, 258, 276, 344, 345, 360, 368, 387, 409, 414, 430, 460, 516, 552, 645, 688, 690, 720, 774, 818, 828, 860, 920, 989, 1032, 1035, 1104, 1227, 1290, 1380, 1548, 1636, 1656, 1720, 1840, 1935, 1978, 2045, 2064, 2070, 2454, 2580, 2760, 2967, 3096, 3272, 3312, 3440, 3681, 3870, 3956, 4090, 4140, 4908, 4945, 5160, 5520, 5934, 6135, 6192, 6544, 7362, 7740, 7912, 8180, 8280, 8901, 9407, 9816, 9890, 10320, 11868, 12270, 14724, 14835, 15480, 15824, 16360, 16560, 17587, 17802, 18405, 18814, 19632, 19780, 23736, 24540, 28221, 29448, 29670, 30960, 32720, 35174, 35604, 36810, 37628, 39560, 44505, 47035, 47472, 49080, 52761, 56442, 58896, 59340, 70348, 71208, 73620, 75256, 79120, 84663, 87935, 89010, 94070, 98160, 105522, 112884, 118680, 140696, 141105, 142416, 147240, 150512, 158283, 169326, 175870, 178020, 188140, 211044, 225768, 237360, 263805, 281392, 282210, 294480, 316566, 338652, 351740, 356040, 376280, 404501, 422088, 423315, 451536, 527610, 564420, 633132, 677304, 703480, 712080, 752560, 791415, 809002, 844176, 846630, 1055220, 1128840, 1213503, 1266264, 1354608, 1406960, 1582830, 1618004, 1693260, 2022505, 2110440, 2257680, 2427006, 2532528, 3165660, 3236008, 3386520, 3640509, 4045010, 4220880, 4854012, 6067515, 6331320, 6472016, 6773040, 7281018, 8090020, 9708024, 12135030, 12662640, 14562036, 16180040, 18202545, 19416048, 24270060, 29124072, 32360080, 36405090, 48540120, 58248144, 72810180, 97080240, 145620360, 291240720]

約数ペア:

[(1, 291240720), (2, 145620360), (3, 97080240), (4, 72810180), (5, 58248144), (6, 48540120), (8, 36405090), (9, 32360080), (10, 29124072), (12, 24270060), (15, 19416048), (16, 18202545), (18, 16180040), (20, 14562036), (23, 12662640), (24, 12135030), (30, 9708024), (36, 8090020), (40, 7281018), (43, 6773040), (45, 6472016), (46, 6331320), (48, 6067515), (60, 4854012), (69, 4220880), (72, 4045010), (80, 3640509), (86, 3386520), (90, 3236008), (92, 3165660), (115, 2532528), (120, 2427006), (129, 2257680), (138, 2110440), (144, 2022505), (172, 1693260), (180, 1618004), (184, 1582830), (207, 1406960), (215, 1354608), (230, 1266264), (240, 1213503), (258, 1128840), (276, 1055220), (344, 846630), (345, 844176), (360, 809002), (368, 791415), (387, 752560), (409, 712080), (414, 703480), (430, 677304), (460, 633132), (516, 564420), (552, 527610), (645, 451536), (688, 423315), (690, 422088), (720, 404501), (774, 376280), (818, 356040), (828, 351740), (860, 338652), (920, 316566), (989, 294480), (1032, 282210), (1035, 281392), (1104, 263805), (1227, 237360), (1290, 225768), (1380, 211044), (1548, 188140), (1636, 178020), (1656, 175870), (1720, 169326), (1840, 158283), (1935, 150512), (1978, 147240), (2045, 142416), (2064, 141105), (2070, 140696), (2454, 118680), (2580, 112884), (2760, 105522), (2967, 98160), (3096, 94070), (3272, 89010), (3312, 87935), (3440, 84663), (3681, 79120), (3870, 75256), (3956, 73620), (4090, 71208), (4140, 70348), (4908, 59340), (4945, 58896), (5160, 56442), (5520, 52761), (5934, 49080), (6135, 47472), (6192, 47035), (6544, 44505), (7362, 39560), (7740, 37628), (7912, 36810), (8180, 35604), (8280, 35174), (8901, 32720), (9407, 30960), (9816, 29670), (9890, 29448), (10320, 28221), (11868, 24540), (12270, 23736), (14724, 19780), (14835, 19632), (15480, 18814), (15824, 18405), (16360, 17802), (16560, 17587)]